B 180 Test Facility Cryogenic system status issues

B 180 Test Facility Cryogenic system: status, issues and next steps T. Dupont TE/CRG/ML March 23 th, 2021 Slide of 0 / 2 Th Dupont TE/CRG/ML

Cryogenic Status Advancment 1. Commissionning of precooler 2 (Before April 2021) 1. 2. Program written and loaded Commissionning foreseen during dipôle cooldown on bench 2 Commissionning of precoolers charcoal adsorbers renegeration system (Completed on CWU 1) Conclusion: 1. Circulator not adapted to warm up precoolers from 80 K to 300 K (Only usable at room temperature: No interest) 2. Quote for a new device in waiting from «Buchs» supplier Still to be done 1. Bench 3 commissionning (SVB 3)(following GSI planning) 2. Coldbox 4. 5 K process revision (low priority) In addition (to test during the next cooldown) New options added on SVB’s: • Filling by the bottom or the Top • Level switchs thresholds (between Filling Mode and Steady Mode) March 23 th, 2021 Slide of 1 / 2 Th Dupont TE/CRG/ML

Commissionning Status GHe Buffer 4 x 80 m LN 2 Dewar 100% 5 m 3 Lhe Dewar 100% Precooler Compressor Station 100% DVB 66% 33% CVB 366% 3% SVB 2 10% 100% SVB 3 10% MAGNET Precooler 1 80% ->100% SVB 1 100% MAGNET GHe Buffer 2 x 35 m Cold Box 80% MAGNET Main Compressor Station 100% Precooler 2 0 ->50% Since last meeting in February 21 March 23 th, 2021 Slide of 2 / 2 Th Dupont TE/CRG/ML

Thank you for your attention March 23 th, 2021 Slide of 3 / 2 Th Dupont TE/CRG/ML

Components layout Cooldown from 80 K to 4. 5 K AND Steady. Mode GHe Buffer 4 x 80 m LN 2 Dewar 50 m 3 Precooler 1 9 k. W CVB SVB 2 SVB 3 Precooler 2 15 k. W From 300 K to 4. 5 K AND Warm. Up Cooldown from 300 K to 80 K AND Warm. Up March 23 th, 2021 DVB MAGNET Precooler Compressor Station 50 g/s; Nominal pressure: 12 Bars 5 m 3 Lhe Dewar SVB 1 MAGNET GHe Buffer 2 x 35 m Cold Box 6 g/s (1. 2 k. W) MAGNET Main Compressor Station 165 g/s ; Max 20 Bars Nominal pressure: 16, 5 Bars Slide of 4 / 2 Th Dupont TE/CRG/ML

Location of the test facility He gas buffers Storage tanks Compressors Station TCF 200 & other cryo 180 279 LN 2 Tank March 23 th, 2021 Slide of 5 / 2 Th Dupont TE/CRG/ML

Super-FRS magnet test area in B 180 March 23 th, 2021 Slide of 6 / 2 Th Dupont TE/CRG/ML